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Living with Congenital mesoblastic nephroma

A rare kidney tumor in babies, usually found in the first year of life.

Understanding Congenital mesoblastic nephroma

Congenital mesoblastic nephroma is a rare low-grade kidney tumor that is present at birth or found in early childhood.

It is a low-grade tumor of the kidney made of cells called fibroblasts. Most cases are found in the first year of life. GARD says that when the tumor is completely removed by surgery, the outlook is usually excellent.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include cancer specialists and kidney specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Cancer specialists (oncologists); Kidney specialists (nephrologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with National Kidney Foundation and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Is surgery to remove the tumor the right step for my child?
What follow-up checks will my child need after treatment?
Which specialists should be on my child's care team?

Quick facts

Symptoms usually startNewborn and as an Infant

GARD doesn't describe a cause for this condition yet.

Kidney

Also known as: cmn; stromal nephroma, malignant

Patient organizations

Source: NIH GARD · Congenital mesoblastic nephromaGARD ID 1493 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Congenital mesoblastic nephroma.

Explore the Congenital mesoblastic nephroma blog

Explore research for Congenital mesoblastic nephroma

Explore actively recruiting Congenital mesoblastic nephroma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Congenital mesoblastic nephroma with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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